Branching ratios for de-excitation processes of daughter nuclei following invisible dinucleon decays in 16O
Branching ratios for de-excitation processes of daughter nuclei following invisible dinucleon decays in 16O
复制标题
16O 中不可见双核子衰变后子核去激发过程的分支比
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
M. Nirkko
中科院分区：
文献类型：
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作者：
K. Hagino;M. Nirkko
粒子物理标准模型之外的各种理论预言了导致核子衰变的重子数破坏过程的存在。当发生在原子核内时，这种衰变将伴随着子核的二次衰变，除非其基态被直接填充。在本文中，我们估计的分支比与双核衰变的16 O核的过程。为此，我们使用一个简单的壳模型的基态16 O。对于从1 s 1/2配置，这导致在子核中的高激发态的衰变，我们采用的统计模型与豪泽-Feshbach理论。我们的分析表明，在5和9兆电子伏之间的能量范围内，这是相关的低阈值水切伦科夫实验，如SNO+的伽马射线发射的分支比为4.53%，35.7%，和20.2%的nn，pp和pn衰变在16 O，分别。特别地，来自14 C的6.09 MeV和7.01 MeV伽马射线以及来自14 N的6.45 MeV和7.03 MeV伽马射线的发射分别具有高达10.9%、20.1%、7.73%和8.90%的分支比。
Various theories beyond the standard model of particle physics predict the existence of baryon number violating processes resulting in nucleon decay. When occurring within an atomic nucleus, such a decay will be followed by secondary decays of the daughter nucleus unless its ground state is directly populated. In this paper, we estimate branching ratios for processes associated with dinucleon decays of the 16O nucleus. To this end, we use a simple shell model for the ground state of 16O. For decays from the 1s1/2 configuration, which result in highly excited states in the daughter nucleus, we employ a statistical model with the Hauser-Feshbach theory. Our analysis indicates that the branching ratio for gamma-ray emission in the energy range between 5 and 9 MeV, which is relevant to low-threshold water Cherenkov experiments such as SNO+, is 4.53%, 35.7%, and 20.2% for the nn, pp, and pn decays in 16O, respectively. In particular, emission of 6.09 MeV and 7.01 MeV gamma-rays from 14C, and 6.45 MeV and 7.03 MeV gamma-rays from 14N, have branching ratios as large as 10.9%, 20.1%, 7.73% and 8.90%, respectively.
影响因子：
1.7
作者：
S. Andringa;E. Arushanova;S. Asahi;M. Askins;D. Auty;A. R. Back;Z. Barnard;N. Barros;E. Beier;A. Bialek;S. Biller;E. Blucher;R. Bonventre;D. Braid;E. Caden;E. Callaghan;J. Caravaca;J. Carvalho;L. Cavalli;D. Chauhan;M. Chen;O. Chkvorets;K. Clark;B. Cleveland;I. Coulter;D. Cressy;X. Dai;C. Darrach;B. Davis-purcell;R. Deen;M. M. Depatie-M.;F. Descamps;F. Lodovico;N. Duhaime;F. Duncan;J. Dunger;E. Falk;N. Fatemighomi;R. Ford;P. Gorel;C. Grant;S. Grullon;E. Guillian;A. Hallin;D. Hallman;S. Hans;J. Hartnell;P. Harvey;M. Hedayatipour;W. Heintzelman;R. Helmer;B. Hreljac;J. Hu;T. Iida;C. Jackson;N. Jelley;C. Jillings;C. Jones;P. Jones;K. Kamdin;T. Kaptanoglu;J. Kaspar;P. Keener;P. Khaghani;L. Kippenbrock;J. Klein;R. Knapik;J. Kofron;L. Kormos;S. Korte;C. Kraus;C. Krauss;K. Labe;I. Lam;C. Lan;B. Land;S. Langrock;A. Latorre;I. Lawson;G. Lefeuvre;E. Leming;J. Lidgard;X. Liu;Y. Liu;V. Lozza;S. Maguire;A. Maio;K. Majumdar;S. Manecki;J. Maneira;E. Marzec;A. Mastbaum;N. McCauley;A. McDonald;J. Mcmillan;P. Mekarski;C. Miller;Y. Mohan;E. Mony;M. Mottram;V. Novikov;H. O'Keeffe;E. O’Sullivan;G. O. Gann;M. Parnell;S. Peeters;T. Pershing;Z. Petriw;G. Prior;J. Prouty;S. Quirk;A. Reichold;A. Robertson;J. Rose;R. Rosero;P. Rost;J. Rumleskie;M. Schumaker;M. Schwendener;D. Ścisłowski;J. Secrest;M. Seddighin;L. Segui;S. Seibert;T. Shantz;T. Shokair;L. Sibley;J. Sinclair;K. Singh;P. Skensved;A. Soerensen;T. Sonley;R. Stainforth;M. Strait;M. Stringer;R. Svoboda;J. Tatar;L. Tian;N. Tolich;J. Tseng;H. Tseung;R. Berg;E. V'azquez-J'auregui;C. Virtue;B. Krosigk;J. Walker;M. Walker;O. Wasalski;J. Waterfield;R. White;J. Wilson;T. Winchester;A. Wright;M. Yeh;T. Zhao;K. Z. L. D. I. E. F. E. Part'iculas-K.-Z.-L.-D.-I.-E.-F.-E.-Part'iculas-1388793916;Lisboa;Portugal;Queen Mary;U. O. London;S. O. Physics;Astronomy;London;UK.;Queen's University;D. Physics;E. Physics;Kingston;on;Canada.;U. California;Davis;Ca;Usa;U. Alberta;Edmonton;Ab;U. Sussex;Physics;Falmer;Brighton;Laurentian University;Sudbury;U. Pennsylvania;Philadelphia.;Pa;U. Oxford;The Denys Wilkinson Building;Oxford;The Enrico Fermi Institute;T. Chicago;Chicago.;Il;Berkeley;L. B. N. Laboratory;Nuclear Science Division;Universidade de Coimbra;Laborat'orio de Instrumentaccao e F'isica Experimental de Part'iculas-Laborat'orio-de-Instrumentaccao-e-F'isica-de-1388470540;D. D. F'isica-D.;Coimbra;Snolab;Triumf;Vancouver.;Bc;Brookhaven National Laboratory;C. Department;Upton;Ny;U. Washington;Center for High Energy Physics;Astrophysics;Seattle;Wa;N. University;Northfield;Vt;L. University;Physics Department;Lancaster;T. U. Dresden;Institut fur Teilchenphysik;Dresden.;H Germany;Universidade de Lisboa;F. Ciencias;U. Liverpool;Liverpool;U. Sheffield;Sheffield;A. A. S. University-A.;Savannah;Ga;Universidad Nacional Aut'onoma de M'exico;I. D. F'isica;M'exico D.F.;M'exico.
通讯作者：
S. Andringa;E. Arushanova;S. Asahi;M. Askins;D. Auty;A. R. Back;Z. Barnard;N. Barros;E. Beier;A. Bialek;S. Biller;E. Blucher;R. Bonventre;D. Braid;E. Caden;E. Callaghan;J. Caravaca;J. Carvalho;L. Cavalli;D. Chauhan;M. Chen;O. Chkvorets;K. Clark;B. Cleveland;I. Coulter;D. Cressy;X. Dai;C. Darrach;B. Davis-purcell;R. Deen;M. M. Depatie-M.;F. Descamps;F. Lodovico;N. Duhaime;F. Duncan;J. Dunger;E. Falk;N. Fatemighomi;R. Ford;P. Gorel;C. Grant;S. Grullon;E. Guillian;A. Hallin;D. Hallman;S. Hans;J. Hartnell;P. Harvey;M. Hedayatipour;W. Heintzelman;R. Helmer;B. Hreljac;J. Hu;T. Iida;C. Jackson;N. Jelley;C. Jillings;C. Jones;P. Jones;K. Kamdin;T. Kaptanoglu;J. Kaspar;P. Keener;P. Khaghani;L. Kippenbrock;J. Klein;R. Knapik;J. Kofron;L. Kormos;S. Korte;C. Kraus;C. Krauss;K. Labe;I. Lam;C. Lan;B. Land;S. Langrock;A. Latorre;I. Lawson;G. Lefeuvre;E. Leming;J. Lidgard;X. Liu;Y. Liu;V. Lozza;S. Maguire;A. Maio;K. Majumdar;S. Manecki;J. Maneira;E. Marzec;A. Mastbaum;N. McCauley;A. McDonald;J. Mcmillan;P. Mekarski;C. Miller;Y. Mohan;E. Mony;M. Mottram;V. Novikov;H. O'Keeffe;E. O’Sullivan;G. O. Gann;M. Parnell;S. Peeters;T. Pershing;Z. Petriw;G. Prior;J. Prouty;S. Quirk;A. Reichold;A. Robertson;J. Rose;R. Rosero;P. Rost;J. Rumleskie;M. Schumaker;M. Schwendener;D. Ścisłowski;J. Secrest;M. Seddighin;L. Segui;S. Seibert;T. Shantz;T. Shokair;L. Sibley;J. Sinclair;K. Singh;P. Skensved;A. Soerensen;T. Sonley;R. Stainforth;M. Strait;M. Stringer;R. Svoboda;J. Tatar;L. Tian;N. Tolich;J. Tseng;H. Tseung;R. Berg;E. V'azquez-J'auregui;C. Virtue;B. Krosigk;J. Walker;M. Walker;O. Wasalski;J. Waterfield;R. White;J. Wilson;T. Winchester;A. Wright;M. Yeh;T. Zhao;K. Z. L. D. I. E. F. E. Part'iculas-K.-Z.-L.-D.-I.-E.-F.-E.-Part'iculas-1388793916;Lisboa;Portugal;Queen Mary;U. O. London;S. O. Physics;Astronomy;London;UK.;Queen's University;D. Physics;E. Physics;Kingston;on;Canada.;U. California;Davis;Ca;Usa;U. Alberta;Edmonton;Ab;U. Sussex;Physics;Falmer;Brighton;Laurentian University;Sudbury;U. Pennsylvania;Philadelphia.;Pa;U. Oxford;The Denys Wilkinson Building;Oxford;The Enrico Fermi Institute;T. Chicago;Chicago.;Il;Berkeley;L. B. N. Laboratory;Nuclear Science Division;Universidade de Coimbra;Laborat'orio de Instrumentaccao e F'isica Experimental de Part'iculas-Laborat'orio-de-Instrumentaccao-e-F'isica-de-1388470540;D. D. F'isica-D.;Coimbra;Snolab;Triumf;Vancouver.;Bc;Brookhaven National Laboratory;C. Department;Upton;Ny;U. Washington;Center for High Energy Physics;Astrophysics;Seattle;Wa;N. University;Northfield;Vt;L. University;Physics Department;Lancaster;T. U. Dresden;Institut fur Teilchenphysik;Dresden.;H Germany;Universidade de Lisboa;F. Ciencias;U. Liverpool;Liverpool;U. Sheffield;Sheffield;A. A. S. University-A.;Savannah;Ga;Universidad Nacional Aut'onoma de M'exico;I. D. F'isica;M'exico D.F.;M'exico.